263790890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^3\times {\mathrm{19819}}^1$

素因数の和:19859

約数の個数: 32

約数和(自身を含む): 522296640

約数和(自身を除く): 258505750

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 1331, 2662, 6655, 13310, 19819, 39638, 99095, 198190, 218009, 436018, 1090045, 2180090, 2398099, 4796198, 11990495, 23980990, 26379089, 52758178, 131895445, 263790890]

約数ペア:

[(1, 263790890), (2, 131895445), (5, 52758178), (10, 26379089), (11, 23980990), (22, 11990495), (55, 4796198), (110, 2398099), (121, 2180090), (242, 1090045), (605, 436018), (1210, 218009), (1331, 198190), (2662, 99095), (6655, 39638), (13310, 19819)]